Build Instructions

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• 1

  Source code

  All the code and schematics for this project are in my github page https://github.com/jotatsu/TitanClock-RGB.
  

• 2

  Preparing

  The first thing you need to do is to dissemble your LCD screen, depending on the model you have you might need to remove some screws, unclip flips, use a hammer, etc. The objective is to get to the backlight diffuser, that normally should be an acrylic sheet with dots marked in the back and some plastic sheets in the front and back. Remember the way the sheets are sandwiched (order and orientation) as you will need to use the same structure when you put them in the segments.

• 3

  Cutting

  The objective of the cut is to generate a segment with this shape (note that the sizes are examples for my 15x28cm 7 segment display):

  Depending on the size of the acrylic diffuser and the desired size of the segments, design a cutting path for the laser to create the segments. In my case I did 48 segments, more than enough for 4 full digits. The original acrylic is 1cm thick from a 21-inch diagonal screen.

  This process can be done using a saw, but it will be a lot harder to obtain consistent shape segments and after the cut you will probably need to sand and flame polish the borders in order to make then optically clear.

  You will also need to cut the other plastic sheets in the same shape and size as your segments in order to replicate the original backlight sandwich. Also to replicate the metallic exterior of the LCD backlight cut the craft aluminium in this shape (respecting the size for your particular segments, leave some 0.5-1.0 mm extra to account for the material thickness):

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